diff --git a/tests/unit-tests/util/in-memory-storage-common.t.cpp b/tests/unit-tests/util/in-memory-storage-common.t.cpp
new file mode 100644
index 0000000..9e7c814
--- /dev/null
+++ b/tests/unit-tests/util/in-memory-storage-common.t.cpp
@@ -0,0 +1,1062 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2013-2016 Regents of the University of California.
+ *
+ * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
+ *
+ * ndn-cxx library is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * ndn-cxx library is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+ * PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more details.
+ *
+ * You should have received copies of the GNU General Public License and GNU Lesser
+ * General Public License along with ndn-cxx, e.g., in COPYING.md file.  If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
+ */
+
+#include "util/in-memory-storage-persistent.hpp"
+#include "util/in-memory-storage-fifo.hpp"
+#include "util/in-memory-storage-lfu.hpp"
+#include "util/in-memory-storage-lru.hpp"
+#include "security/key-chain.hpp"
+
+#include "boost-test.hpp"
+#include "../make-interest-data.hpp"
+#include "../unit-test-time-fixture.hpp"
+
+#include <boost/mpl/list.hpp>
+
+namespace ndn {
+namespace util {
+namespace tests {
+
+using namespace ndn::tests;
+
+BOOST_AUTO_TEST_SUITE(Util)
+BOOST_AUTO_TEST_SUITE(TestInMemoryStorage)
+BOOST_AUTO_TEST_SUITE(Common)
+
+typedef boost::mpl::list<InMemoryStoragePersistent, InMemoryStorageFifo, InMemoryStorageLfu,
+                         InMemoryStorageLru> InMemoryStorages;
+
+BOOST_AUTO_TEST_CASE_TEMPLATE(Insertion, T, InMemoryStorages)
+{
+  T ims;
+
+  ims.insert(*makeData("/insertion"));
+}
+
+BOOST_AUTO_TEST_CASE_TEMPLATE(Insertion2, T, InMemoryStorages)
+{
+  T ims;
+
+  ims.insert(*makeData("/a"));
+  ims.insert(*makeData("/b"));
+  ims.insert(*makeData("/c"));
+  ims.insert(*makeData("/d"));
+
+  BOOST_CHECK_EQUAL(ims.size(), 4);
+}
+
+BOOST_AUTO_TEST_CASE_TEMPLATE(Insertion3, T, InMemoryStorages)
+{
+  T ims;
+
+  Name name("/a");
+
+  uint32_t content1 = 1;
+  shared_ptr<Data> data1 = makeData(name);
+  data1->setFreshnessPeriod(time::milliseconds(99999));
+  data1->setContent(reinterpret_cast<const uint8_t*>(&content1), sizeof(content1));
+  signData(data1);
+  ims.insert(*data1);
+
+  uint32_t content2 = 2;
+  shared_ptr<Data> data2 = makeData(name);
+  data2->setFreshnessPeriod(time::milliseconds(99999));
+  data2->setContent(reinterpret_cast<const uint8_t*>(&content2), sizeof(content2));
+  signData(data2);
+  ims.insert(*data2);
+
+  BOOST_CHECK_EQUAL(ims.size(), 2);
+}
+
+BOOST_AUTO_TEST_CASE_TEMPLATE(DuplicateInsertion, T, InMemoryStorages)
+{
+  T ims;
+
+  shared_ptr<Data> data0 = makeData("/insert/smth");
+  ims.insert(*data0);
+
+  shared_ptr<Data> data = makeData("/insert/duplicate");
+  ims.insert(*data);
+
+  ims.insert(*data);
+  BOOST_CHECK_EQUAL(ims.size(), 2);
+}
+
+BOOST_AUTO_TEST_CASE_TEMPLATE(DuplicateInsertion2, T, InMemoryStorages)
+{
+  T ims;
+
+  shared_ptr<Data> data = makeData("/insert/duplicate");
+  ims.insert(*data);
+
+  ims.insert(*data);
+  BOOST_CHECK_EQUAL(ims.size(), 1);
+
+  shared_ptr<Data> data2 = makeData("/insert/original");
+  ims.insert(*data2);
+  BOOST_CHECK_EQUAL(ims.size(), 2);
+}
+
+BOOST_AUTO_TEST_CASE_TEMPLATE(InsertAndFind, T, InMemoryStorages)
+{
+  T ims;
+
+  Name name("/insert/and/find");
+
+  shared_ptr<Data> data = makeData(name);
+  ims.insert(*data);
+
+  shared_ptr<Interest> interest = makeInterest(name);
+
+  shared_ptr<const Data> found = ims.find(*interest);
+  BOOST_CHECK(found != nullptr);
+  BOOST_CHECK_EQUAL(data->getName(), found->getName());
+}
+
+BOOST_AUTO_TEST_CASE_TEMPLATE(InsertAndNotFind, T, InMemoryStorages)
+{
+  T ims;
+
+  Name name("/insert/and/find");
+  shared_ptr<Data> data = makeData(name);
+  ims.insert(*data);
+
+  Name name2("/not/find");
+  shared_ptr<Interest> interest = makeInterest(name2);
+
+  shared_ptr<const Data> found = ims.find(*interest);
+
+  BOOST_CHECK_EQUAL(found.get(), static_cast<const Data*>(0));
+}
+
+BOOST_AUTO_TEST_CASE_TEMPLATE(InsertAndFindByName, T, InMemoryStorages)
+{
+  T ims;
+
+  Name name("/insert/and/find");
+
+  shared_ptr<Data> data = makeData(name);
+  ims.insert(*data);
+
+  shared_ptr<const Data> found = ims.find(name);
+  BOOST_CHECK(found != nullptr);
+  BOOST_CHECK_EQUAL(data->getName(), found->getName());
+}
+
+BOOST_AUTO_TEST_CASE_TEMPLATE(InsertAndFindByFullName, T, InMemoryStorages)
+{
+  T ims;
+
+  Name name("/insert/and/find");
+
+  shared_ptr<Data> data = makeData(name);
+  ims.insert(*data);
+
+  shared_ptr<const Data> found = ims.find(data->getFullName());
+  BOOST_CHECK(found != nullptr);
+  BOOST_CHECK_EQUAL(data->getFullName(), found->getFullName());
+}
+
+BOOST_AUTO_TEST_CASE_TEMPLATE(InsertAndNotFindByName, T, InMemoryStorages)
+{
+  T ims;
+
+  Name name("/insert/and/find");
+  shared_ptr<Data> data = makeData(name);
+  ims.insert(*data);
+
+  Name name2("/not/find");
+
+  shared_ptr<const Data> found = ims.find(name2);
+  BOOST_CHECK(found == nullptr);
+}
+
+BOOST_AUTO_TEST_CASE_TEMPLATE(InsertAndNotFindByFullName, T, InMemoryStorages)
+{
+  T ims;
+
+  Name name("/a");
+  uint32_t content1 = 1;
+  shared_ptr<Data> data1 = makeData(name);
+  data1->setContent(reinterpret_cast<const uint8_t*>(&content1), sizeof(content1));
+  signData(data1);
+  ims.insert(*data1);
+
+  uint32_t content2 = 2;
+  shared_ptr<Data> data2 = makeData(name);
+  data2->setContent(reinterpret_cast<const uint8_t*>(&content2), sizeof(content2));
+  signData(data2);
+
+  shared_ptr<const Data> found = ims.find(data2->getFullName());
+  BOOST_CHECK(found == nullptr);
+}
+
+BOOST_AUTO_TEST_CASE_TEMPLATE(InsertAndEraseByName, T, InMemoryStorages)
+{
+  T ims;
+
+  Name name("/insertandremovebyname");
+
+  uint32_t content1 = 1;
+  shared_ptr<Data> data1 = makeData(name);
+  data1->setFreshnessPeriod(time::milliseconds(99999));
+  data1->setContent(reinterpret_cast<const uint8_t*>(&content1), sizeof(content1));
+  signData(data1);
+  ims.insert(*data1);
+
+  uint32_t content2 = 2;
+  shared_ptr<Data> data2 = makeData(name);
+  data2->setFreshnessPeriod(time::milliseconds(99999));
+  data2->setContent(reinterpret_cast<const uint8_t*>(&content2), sizeof(content2));
+  signData(data2);
+  ims.insert(*data2);
+
+  shared_ptr<Data> data3 = makeData("/insertandremovebyname/1");
+  ims.insert(*data3);
+
+  shared_ptr<Data> data4 = makeData("/insertandremovebyname/2");
+  ims.insert(*data4);
+
+  BOOST_CHECK_EQUAL(ims.size(), 4);
+
+  ims.erase(data1->getFullName(), false);
+  BOOST_CHECK_EQUAL(ims.size(), 3);
+}
+
+BOOST_AUTO_TEST_CASE_TEMPLATE(InsertAndEraseByPrefix, T, InMemoryStorages)
+{
+  T ims;
+
+  shared_ptr<Data> data = makeData("/a");
+  ims.insert(*data);
+
+  shared_ptr<Data> data2 = makeData("/b");
+  ims.insert(*data2);
+
+  shared_ptr<Data> data3 = makeData("/c");
+  ims.insert(*data3);
+
+  shared_ptr<Data> data4 = makeData("/d");
+  ims.insert(*data4);
+
+  shared_ptr<Data> data5 = makeData("/c/c/1/2/3/4/5/6");
+  ims.insert(*data5);
+
+  shared_ptr<Data> data6 = makeData("/c/c/1/2/3");
+  ims.insert(*data6);
+
+  shared_ptr<Data> data7 = makeData("/c/c/1");
+  ims.insert(*data7);
+
+  BOOST_CHECK_EQUAL(ims.size(), 7);
+
+  Name name("/c");
+  ims.erase(name);
+  BOOST_CHECK_EQUAL(ims.size(), 3);
+  BOOST_CHECK_EQUAL(ims.getCapacity(), 5);
+}
+
+BOOST_AUTO_TEST_CASE_TEMPLATE(DigestCalculation, T, InMemoryStorages)
+{
+  shared_ptr<Data> data = makeData("/digest/compute");
+
+  ndn::ConstBufferPtr digest1 = ndn::crypto::sha256(data->wireEncode().wire(),
+                                                    data->wireEncode().size());
+  BOOST_CHECK_EQUAL(digest1->size(), 32);
+
+  InMemoryStorageEntry* entry = new InMemoryStorageEntry();
+  entry->setData(*data);
+
+  BOOST_CHECK_EQUAL_COLLECTIONS(digest1->begin(), digest1->end(),
+                                entry->getFullName()[-1].value_begin(),
+                                entry->getFullName()[-1].value_end());
+}
+
+BOOST_AUTO_TEST_CASE_TEMPLATE(Iterator, T, InMemoryStorages)
+{
+  T ims;
+
+  BOOST_CONCEPT_ASSERT((boost::InputIterator<InMemoryStorage::const_iterator>));
+
+  for (int i = 0; i < 10; i++) {
+    std::ostringstream convert;
+    convert << i;
+    Name name("/" + convert.str());
+    shared_ptr<Data> data = makeData(name);
+    ims.insert(*data);
+  }
+
+  InMemoryStorage::const_iterator it = ims.begin();
+  InMemoryStorage::const_iterator tmp1 = it;
+  BOOST_REQUIRE(tmp1 == it);
+  InMemoryStorage::const_iterator tmp2 = tmp1++;
+  BOOST_REQUIRE(tmp2 != tmp1);
+  tmp2 = ++tmp1;
+  BOOST_REQUIRE(tmp2 == tmp1);
+
+  int i = 0;
+  for (;it != ims.end(); it++) {
+    std::ostringstream convert;
+    convert << i;
+    Name name("/" + convert.str());
+    BOOST_CHECK_EQUAL(it->getName(), name);
+    BOOST_CHECK_EQUAL((*it).getName(), name);
+    i++;
+  }
+}
+
+BOOST_AUTO_TEST_CASE_TEMPLATE(InsertCanonical, T, InMemoryStorages)
+{
+  T ims;
+
+  shared_ptr<Data> data = makeData("/a");
+  ims.insert(*data);
+
+  shared_ptr<Data> data2 = makeData("/b");
+  ims.insert(*data2);
+
+  shared_ptr<Data> data3 = makeData("/c");
+  ims.insert(*data3);
+
+  shared_ptr<Data> data4 = makeData("/d");
+  ims.insert(*data4);
+
+  shared_ptr<Data> data5 = makeData("/c/c/1/2/3/4/5/6");
+  ims.insert(*data5);
+
+  shared_ptr<Data> data6 = makeData("/c/c/1/2/3");
+  ims.insert(*data6);
+
+  shared_ptr<Data> data7 = makeData("/c/c/1");
+  ims.insert(*data7);
+}
+
+BOOST_AUTO_TEST_CASE_TEMPLATE(EraseCanonical, T, InMemoryStorages)
+{
+  T ims;
+
+  shared_ptr<Data> data = makeData("/a");
+  ims.insert(*data);
+
+  shared_ptr<Data> data2 = makeData("/b");
+  ims.insert(*data2);
+
+  shared_ptr<Data> data3 = makeData("/c");
+  ims.insert(*data3);
+
+  shared_ptr<Data> data4 = makeData("/d");
+  ims.insert(*data4);
+
+  shared_ptr<Data> data5 = makeData("/c/c/1/2/3/4/5/6");
+  ims.insert(*data5);
+
+  shared_ptr<Data> data6 = makeData("/c/c/1/2/3");
+  ims.insert(*data6);
+
+  shared_ptr<Data> data7 = makeData("/c/c/1");
+  ims.insert(*data7);
+
+  ndn::ConstBufferPtr digest1 = ndn::crypto::sha256(data->wireEncode().wire(),
+                                                    data->wireEncode().size());
+
+  Name name("/a");
+  ims.erase(name);
+  BOOST_CHECK_EQUAL(ims.size(), 6);
+}
+
+BOOST_AUTO_TEST_CASE_TEMPLATE(ImplicitDigestSelector, T, InMemoryStorages)
+{
+  T ims;
+
+  Name name("/digest/works");
+  shared_ptr<Data> data = makeData(name);
+  ims.insert(*data);
+
+  shared_ptr<Data> data2 = makeData("/a");
+  ims.insert(*data2);
+
+  shared_ptr<Data> data3 = makeData("/z/z/z");
+  ims.insert(*data3);
+
+  ndn::ConstBufferPtr digest1 = ndn::crypto::sha256(data->wireEncode().wire(),
+                                                    data->wireEncode().size());
+
+  shared_ptr<Interest> interest = makeInterest("");
+  interest->setName(Name(name).appendImplicitSha256Digest(digest1->buf(), digest1->size()));
+  interest->setMinSuffixComponents(0);
+  interest->setMaxSuffixComponents(0);
+
+  shared_ptr<const Data> found = ims.find(*interest);
+  BOOST_REQUIRE(found != nullptr);
+  BOOST_CHECK_EQUAL(found->getName(), name);
+
+  shared_ptr<Interest> interest2 = makeInterest("");
+  uint8_t digest2[32] = {0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+                         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1};
+  interest2->setName(Name(name).appendImplicitSha256Digest(digest2, 32));
+  interest2->setMinSuffixComponents(0);
+  interest2->setMaxSuffixComponents(0);
+
+  shared_ptr<const Data> notfound = ims.find(*interest2);
+  BOOST_CHECK(notfound == nullptr);
+}
+
+BOOST_AUTO_TEST_CASE_TEMPLATE(ChildSelector, T, InMemoryStorages)
+{
+  T ims;
+
+  shared_ptr<Data> data = makeData("/a");
+  ims.insert(*data);
+
+  shared_ptr<Data> data2 = makeData("/b");
+  ims.insert(*data2);
+
+  shared_ptr<Data> data4 = makeData("/d");
+  ims.insert(*data4);
+
+  shared_ptr<Data> data5 = makeData("/c/c");
+  ims.insert(*data5);
+
+  shared_ptr<Data> data6 = makeData("/c/f");
+  ims.insert(*data6);
+
+  shared_ptr<Data> data7 = makeData("/c/n");
+  ims.insert(*data7);
+
+  shared_ptr<Interest> interest = makeInterest("/c");
+  interest->setChildSelector(1);
+
+  shared_ptr<const Data> found = ims.find(*interest);
+  BOOST_CHECK_EQUAL(found->getName(), "/c/n");
+
+  shared_ptr<Interest> interest2 = makeInterest("/c");
+  interest2->setChildSelector(0);
+
+  shared_ptr<const Data> found2 = ims.find(*interest2);
+  BOOST_CHECK_EQUAL(found2->getName(), "/c/c");
+}
+
+BOOST_AUTO_TEST_CASE_TEMPLATE(ChildSelector2, T, InMemoryStorages)
+{
+  T ims;
+
+  shared_ptr<Data> data = makeData("/a/b/1");
+  ims.insert(*data);
+
+  shared_ptr<Data> data2 = makeData("/a/b/2");
+  ims.insert(*data2);
+
+  shared_ptr<Data> data3 = makeData("/a/z/1");
+  ims.insert(*data3);
+
+  shared_ptr<Data> data4 = makeData("/a/z/2");
+  ims.insert(*data4);
+
+  shared_ptr<Interest> interest = makeInterest("/a");
+  interest->setChildSelector(1);
+
+  shared_ptr<const Data> found = ims.find(*interest);
+  BOOST_CHECK_EQUAL(found->getName(), "/a/z/1");
+}
+
+BOOST_AUTO_TEST_CASE_TEMPLATE(PublisherKeySelector, T, InMemoryStorages)
+{
+  T ims;
+
+  Name name("/insert/withkey");
+  shared_ptr<Data> data = makeData(name);
+  ims.insert(*data);
+
+  shared_ptr<Interest> interest = makeInterest(name);
+  Name keyName("/somewhere/key");
+
+  ndn::KeyLocator locator(keyName);
+  interest->setPublisherPublicKeyLocator(locator);
+
+  shared_ptr<const Data> found = ims.find(*interest);
+  BOOST_CHECK(found == nullptr);
+}
+
+BOOST_AUTO_TEST_CASE_TEMPLATE(PublisherKeySelector2, T, InMemoryStorages)
+{
+  T ims;
+  Name name("/insert/withkey");
+  shared_ptr<Data> data = makeData(name);
+  ims.insert(*data);
+
+  Name name2("/insert/withkey2");
+  shared_ptr<Data> data2 = make_shared<Data>(name2);
+
+  Name keyName("/somewhere/key");
+  const ndn::KeyLocator locator(keyName);
+
+  ndn::SignatureSha256WithRsa fakeSignature;
+  fakeSignature.setValue(makeEmptyBlock(tlv::SignatureValue));
+
+  fakeSignature.setKeyLocator(locator);
+  data2->setSignature(fakeSignature);
+  data2->wireEncode();
+
+  ims.insert(*data2);
+
+  shared_ptr<Interest> interest = makeInterest(name2);
+  interest->setPublisherPublicKeyLocator(locator);
+
+  shared_ptr<const Data> found = ims.find(*interest);
+  BOOST_CHECK(found != nullptr);
+  BOOST_CHECK_EQUAL(found->getName(), data2->getName());
+}
+
+BOOST_AUTO_TEST_CASE_TEMPLATE(MinMaxComponentsSelector, T, InMemoryStorages)
+{
+  T ims;
+
+  shared_ptr<Data> data = makeData("/a");
+  ims.insert(*data);
+
+  shared_ptr<Data> data2 = makeData("/b");
+  ims.insert(*data2);
+
+  shared_ptr<Data> data4 = makeData("/d");
+  ims.insert(*data4);
+
+  shared_ptr<Data> data5 = makeData("/c/c/1/2/3/4/5/6");
+  ims.insert(*data5);
+
+  shared_ptr<Data> data6 = makeData("/c/c/6/7/8/9");
+  ims.insert(*data6);
+
+  shared_ptr<Data> data7 = makeData("/c/c/1/2/3");
+  ims.insert(*data7);
+
+  shared_ptr<Data> data8 = makeData("/c/c/1");
+  ims.insert(*data8);
+
+  shared_ptr<Interest> interest = makeInterest("/c/c");
+  interest->setMinSuffixComponents(3);
+  interest->setChildSelector(0);
+
+  shared_ptr<const Data> found = ims.find(*interest);
+  BOOST_CHECK_EQUAL(found->getName(), "/c/c/1/2/3");
+
+  shared_ptr<Interest> interest2 = makeInterest("/c/c");
+  interest2->setMinSuffixComponents(4);
+  interest2->setChildSelector(1);
+
+  shared_ptr<const Data> found2 = ims.find(*interest2);
+  BOOST_CHECK_EQUAL(found2->getName(), "/c/c/6/7/8/9");
+
+  shared_ptr<Interest> interest3 = makeInterest("/c/c");
+  interest3->setMaxSuffixComponents(2);
+  interest3->setChildSelector(1);
+
+  shared_ptr<const Data> found3 = ims.find(*interest3);
+  BOOST_CHECK_EQUAL(found3->getName(), "/c/c/1");
+}
+
+BOOST_AUTO_TEST_CASE_TEMPLATE(ExcludeSelector, T, InMemoryStorages)
+{
+  T ims;
+
+  shared_ptr<Data> data = makeData("/a");
+  ims.insert(*data);
+
+  shared_ptr<Data> data2 = makeData("/b");
+  ims.insert(*data2);
+
+  shared_ptr<Data> data3 = makeData("/c/a");
+  ims.insert(*data3);
+
+  shared_ptr<Data> data4 = makeData("/d");
+  ims.insert(*data4);
+
+  shared_ptr<Data> data5 = makeData("/c/c");
+  ims.insert(*data5);
+
+  shared_ptr<Data> data6 = makeData("/c/f");
+  ims.insert(*data6);
+
+  shared_ptr<Data> data7 = makeData("/c/n");
+  ims.insert(*data7);
+
+  shared_ptr<Interest> interest = makeInterest("/c");
+  interest->setChildSelector(1);
+  Exclude e;
+  e.excludeOne (Name::Component("n"));
+  interest->setExclude(e);
+
+  shared_ptr<const Data> found = ims.find(*interest);
+  BOOST_CHECK_EQUAL(found->getName(), "/c/f");
+
+  shared_ptr<Interest> interest2 = makeInterest("/c");
+  interest2->setChildSelector(0);
+
+  Exclude e2;
+  e2.excludeOne (Name::Component("a"));
+  interest2->setExclude(e2);
+
+  shared_ptr<const Data> found2 = ims.find(*interest2);
+  BOOST_CHECK_EQUAL(found2->getName(), "/c/c");
+
+  shared_ptr<Interest> interest3 = makeInterest("/c");
+  interest3->setChildSelector(0);
+
+  Exclude e3;
+  e3.excludeOne (Name::Component("c"));
+  interest3->setExclude(e3);
+
+  shared_ptr<const Data> found3 = ims.find(*interest3);
+  BOOST_CHECK_EQUAL(found3->getName(), "/c/a");
+}
+
+typedef boost::mpl::list<InMemoryStorageFifo, InMemoryStorageLfu, InMemoryStorageLru>
+                         InMemoryStoragesLimited;
+
+BOOST_AUTO_TEST_CASE_TEMPLATE(SetCapacity, T, InMemoryStoragesLimited)
+{
+  T ims;
+
+  ims.setCapacity(3);
+  ims.insert(*makeData("/1"));
+  ims.insert(*makeData("/2"));
+  ims.insert(*makeData("/3"));
+  BOOST_CHECK_EQUAL(ims.size(), 3);
+
+  ims.setCapacity(2);
+  BOOST_CHECK_EQUAL(ims.size(), 2);
+}
+
+BOOST_AUTO_TEST_CASE_TEMPLATE(GetLimit, T, InMemoryStoragesLimited)
+{
+  T ims(10000);
+
+  BOOST_CHECK_EQUAL(ims.getLimit(), 10000);
+
+  T ims2(4);
+
+  BOOST_CHECK_EQUAL(ims2.getLimit(), 4);
+}
+
+BOOST_AUTO_TEST_CASE_TEMPLATE(InsertAndDouble, T, InMemoryStoragesLimited)
+{
+  T ims(40);
+
+  for (int i = 0; i < 11; i++) {
+    std::ostringstream convert;
+    convert << i;
+    Name name("/" + convert.str());
+    shared_ptr<Data> data = makeData(name);
+    data->setFreshnessPeriod(time::milliseconds(5000));
+    signData(data);
+    ims.insert(*data);
+  }
+
+  BOOST_CHECK_EQUAL(ims.size(), 11);
+
+  BOOST_CHECK_EQUAL(ims.getCapacity(), 20);
+}
+
+BOOST_AUTO_TEST_CASE_TEMPLATE(InsertAndEvict, T, InMemoryStoragesLimited)
+{
+  T ims(2);
+
+  Name name("/insert/1");
+  shared_ptr<Data> data = makeData(name);
+  ims.insert(*data);
+
+  Name name2("/insert/2");
+  shared_ptr<Data> data2 = makeData(name2);
+  ims.insert(*data2);
+
+  Name name3("/insert/3");
+  shared_ptr<Data> data3 = makeData(name3);
+  ims.insert(*data3);
+
+  BOOST_CHECK_EQUAL(ims.size(), 2);
+
+  shared_ptr<Interest> interest = makeInterest(name);
+  shared_ptr<const Data> found = ims.find(*interest);
+  BOOST_CHECK(found == nullptr);
+}
+
+///as Find function is implemented at the base case, therefore testing for one derived class is
+///sufficient for all
+class FindFixture : public ndn::tests::UnitTestTimeFixture
+{
+protected:
+  FindFixture()
+    : m_ims(io)
+  {
+  }
+
+  Name
+  insert(uint32_t id, const Name& name,
+         const time::milliseconds& freshWindow = InMemoryStorage::INFINITE_WINDOW)
+  {
+    shared_ptr<Data> data = makeData(name);
+    data->setFreshnessPeriod(time::milliseconds(99999));
+    data->setContent(reinterpret_cast<const uint8_t*>(&id), sizeof(id));
+    signData(data);
+
+    m_ims.insert(*data, freshWindow);
+
+    return data->getFullName();
+  }
+
+  Interest&
+  startInterest(const Name& name)
+  {
+    m_interest = makeInterest(name);
+    return *m_interest;
+  }
+
+  uint32_t
+  find()
+  {
+    shared_ptr<const Data> found = m_ims.find(*m_interest);
+    if (found == 0) {
+      return 0;
+    }
+    const Block& content = found->getContent();
+    if (content.value_size() != sizeof(uint32_t)) {
+      return 0;
+    }
+    return *reinterpret_cast<const uint32_t*>(content.value());
+  }
+
+protected:
+  InMemoryStoragePersistent m_ims;
+  shared_ptr<Interest> m_interest;
+};
+
+BOOST_FIXTURE_TEST_SUITE(Find, FindFixture)
+
+BOOST_AUTO_TEST_CASE(EmptyDataName)
+{
+  insert(1, "ndn:/");
+
+  startInterest("ndn:/");
+  BOOST_CHECK_EQUAL(find(), 1);
+}
+
+BOOST_AUTO_TEST_CASE(EmptyInterestName)
+{
+  insert(1, "ndn:/A");
+
+  startInterest("ndn:/");
+  BOOST_CHECK_EQUAL(find(), 1);
+}
+
+BOOST_AUTO_TEST_CASE(ExactName)
+{
+  insert(1, "ndn:/");
+  insert(2, "ndn:/A");
+  insert(3, "ndn:/A/B");
+  insert(4, "ndn:/A/C");
+  insert(5, "ndn:/D");
+
+  startInterest("ndn:/A");
+  BOOST_CHECK_EQUAL(find(), 2);
+}
+
+BOOST_AUTO_TEST_CASE(FullName)
+{
+  Name n1 = insert(1, "ndn:/A");
+  Name n2 = insert(2, "ndn:/A");
+
+  startInterest(n1);
+  BOOST_CHECK_EQUAL(find(), 1);
+
+  startInterest(n2);
+  BOOST_CHECK_EQUAL(find(), 2);
+}
+
+BOOST_AUTO_TEST_CASE(Leftmost)
+{
+  insert(1, "ndn:/A");
+  insert(2, "ndn:/B/p/1");
+  insert(3, "ndn:/B/p/2");
+  insert(4, "ndn:/B/q/1");
+  insert(5, "ndn:/B/q/2");
+  insert(6, "ndn:/C");
+
+  startInterest("ndn:/B");
+  BOOST_CHECK_EQUAL(find(), 2);
+}
+
+BOOST_AUTO_TEST_CASE(Rightmost)
+{
+  insert(1, "ndn:/A");
+  insert(2, "ndn:/B/p/1");
+  insert(3, "ndn:/B/p/2");
+  insert(4, "ndn:/B/q/1");
+  insert(5, "ndn:/B/q/2");
+  insert(6, "ndn:/C");
+
+  startInterest("ndn:/B")
+    .setChildSelector(1);
+  BOOST_CHECK_EQUAL(find(), 4);
+}
+
+BOOST_AUTO_TEST_CASE(MinSuffixComponents)
+{
+  insert(1, "ndn:/");
+  insert(2, "ndn:/A");
+  insert(3, "ndn:/B/1");
+  insert(4, "ndn:/C/1/2");
+  insert(5, "ndn:/D/1/2/3");
+  insert(6, "ndn:/E/1/2/3/4");
+
+  startInterest("ndn:/")
+    .setMinSuffixComponents(0);
+  BOOST_CHECK_EQUAL(find(), 1);
+
+  startInterest("ndn:/")
+    .setMinSuffixComponents(1);
+  BOOST_CHECK_EQUAL(find(), 1);
+
+  startInterest("ndn:/")
+    .setMinSuffixComponents(2);
+  BOOST_CHECK_EQUAL(find(), 2);
+
+  startInterest("ndn:/")
+    .setMinSuffixComponents(3);
+  BOOST_CHECK_EQUAL(find(), 3);
+
+  startInterest("ndn:/")
+    .setMinSuffixComponents(4);
+  BOOST_CHECK_EQUAL(find(), 4);
+
+  startInterest("ndn:/")
+    .setMinSuffixComponents(5);
+  BOOST_CHECK_EQUAL(find(), 5);
+
+  startInterest("ndn:/")
+    .setMinSuffixComponents(6);
+  BOOST_CHECK_EQUAL(find(), 6);
+
+  startInterest("ndn:/")
+    .setMinSuffixComponents(7);
+  BOOST_CHECK_EQUAL(find(), 0);
+}
+
+BOOST_AUTO_TEST_CASE(MaxSuffixComponents)
+{
+  insert(1, "ndn:/");
+  insert(2, "ndn:/A");
+  insert(3, "ndn:/B/2");
+  insert(4, "ndn:/C/2/3");
+  insert(5, "ndn:/D/2/3/4");
+  insert(6, "ndn:/E/2/3/4/5");
+
+  startInterest("ndn:/")
+    .setChildSelector(1)
+    .setMaxSuffixComponents(0);
+  BOOST_CHECK_EQUAL(find(), 0);
+
+  startInterest("ndn:/")
+    .setChildSelector(1)
+    .setMaxSuffixComponents(1);
+  BOOST_CHECK_EQUAL(find(), 1);
+
+  startInterest("ndn:/")
+    .setChildSelector(1)
+    .setMaxSuffixComponents(2);
+  BOOST_CHECK_EQUAL(find(), 2);
+
+  startInterest("ndn:/")
+    .setChildSelector(1)
+    .setMaxSuffixComponents(3);
+  BOOST_CHECK_EQUAL(find(), 3);
+
+  startInterest("ndn:/")
+    .setChildSelector(1)
+    .setMaxSuffixComponents(4);
+  BOOST_CHECK_EQUAL(find(), 4);
+
+  startInterest("ndn:/")
+    .setChildSelector(1)
+    .setMaxSuffixComponents(5);
+  BOOST_CHECK_EQUAL(find(), 5);
+
+  startInterest("ndn:/")
+    .setChildSelector(1)
+    .setMaxSuffixComponents(6);
+  BOOST_CHECK_EQUAL(find(), 6);
+
+  startInterest("ndn:/")
+    .setChildSelector(1)
+    .setMaxSuffixComponents(7);
+  BOOST_CHECK_EQUAL(find(), 6);
+}
+
+BOOST_AUTO_TEST_CASE(DigestOrder)
+{
+  insert(1, "ndn:/A");
+  insert(2, "ndn:/A");
+  // We don't know which comes first, but there must be some order
+
+  startInterest("ndn:/A")
+    .setChildSelector(0);
+  uint32_t leftmost = find();
+
+  startInterest("ndn:/A")
+    .setChildSelector(1);
+  uint32_t rightmost = find();
+
+  BOOST_CHECK_NE(leftmost, rightmost);
+}
+
+BOOST_AUTO_TEST_CASE(DigestExclude)
+{
+  insert(1, "ndn:/A");
+  Name n2 = insert(2, "ndn:/A");
+  insert(3, "ndn:/A/B");
+
+  uint8_t digest00[ndn::crypto::SHA256_DIGEST_SIZE];
+  std::fill_n(digest00, sizeof(digest00), 0x00);
+  uint8_t digestFF[ndn::crypto::SHA256_DIGEST_SIZE];
+  std::fill_n(digestFF, sizeof(digestFF), 0xFF);
+
+  Exclude excludeDigest;
+  excludeDigest.excludeRange(
+    name::Component::fromImplicitSha256Digest(digest00, sizeof(digest00)),
+    name::Component::fromImplicitSha256Digest(digestFF, sizeof(digestFF)));
+
+  startInterest("ndn:/A")
+    .setChildSelector(0)
+    .setExclude(excludeDigest);
+  BOOST_CHECK_EQUAL(find(), 3);
+
+  startInterest("ndn:/A")
+    .setChildSelector(1)
+    .setExclude(excludeDigest);
+  BOOST_CHECK_EQUAL(find(), 3);
+
+  Exclude excludeGeneric;
+  excludeGeneric.excludeAfter(name::Component(static_cast<uint8_t*>(nullptr), 0));
+
+  startInterest("ndn:/A")
+    .setChildSelector(0)
+    .setExclude(excludeGeneric);
+  int found1 = find();
+  BOOST_CHECK(found1 == 1 || found1 == 2);
+
+  startInterest("ndn:/A")
+    .setChildSelector(1)
+    .setExclude(excludeGeneric);
+  int found2 = find();
+  BOOST_CHECK(found2 == 1 || found2 == 2);
+
+  Exclude exclude2 = excludeGeneric;
+  exclude2.excludeOne(n2.get(-1));
+
+  startInterest("ndn:/A")
+    .setChildSelector(0)
+    .setExclude(exclude2);
+  BOOST_CHECK_EQUAL(find(), 1);
+
+  startInterest("ndn:/A")
+    .setChildSelector(1)
+    .setExclude(exclude2);
+  BOOST_CHECK_EQUAL(find(), 1);
+}
+
+BOOST_AUTO_TEST_CASE(MustBeFresh)
+{
+  Name data1Name = insert(1, "ndn:/A/1", time::milliseconds(500));
+  insert(2, "ndn:/A/2", time::milliseconds(2500));
+  insert(3, "ndn:/A/3", time::milliseconds(3500));
+  insert(4, "ndn:/A/4", time::milliseconds(1500));
+
+  // @0s, all Data are fresh
+  startInterest("ndn:/A/1")
+    .setMustBeFresh(true);
+  BOOST_CHECK_EQUAL(find(), 1);
+
+  startInterest("ndn:/A/1")
+    .setMustBeFresh(false);
+  BOOST_CHECK_EQUAL(find(), 1);
+
+  startInterest("ndn:/A")
+    .setMustBeFresh(true)
+    .setChildSelector(0);
+  BOOST_CHECK_EQUAL(find(), 1);
+
+  startInterest("ndn:/A")
+    .setMustBeFresh(true)
+    .setChildSelector(1);
+  BOOST_CHECK_EQUAL(find(), 4);
+
+  advanceClocks(time::milliseconds(1000));
+  // @1s, /A/1 is stale
+  startInterest("ndn:/A/1")
+    .setMustBeFresh(true);
+  BOOST_CHECK_EQUAL(find(), 0);
+  startInterest("ndn:/A/1")
+    .setMustBeFresh(false);
+  BOOST_CHECK_EQUAL(find(), 1);
+
+  // MustBeFresh is ignored when full Name is specified
+  startInterest(data1Name)
+    .setMustBeFresh(true);
+  BOOST_CHECK_EQUAL(find(), 1);
+
+  startInterest("ndn:/A")
+    .setMustBeFresh(true)
+    .setChildSelector(0);
+  BOOST_CHECK_EQUAL(find(), 2);
+  startInterest("ndn:/A")
+    .setMustBeFresh(false)
+    .setChildSelector(0);
+  BOOST_CHECK_EQUAL(find(), 1);
+
+  advanceClocks(time::milliseconds(1000));
+  // @2s, /A/1 and /A/4 are stale
+  startInterest("ndn:/A")
+    .setMustBeFresh(true)
+    .setChildSelector(1);
+  BOOST_CHECK_EQUAL(find(), 3);
+  startInterest("ndn:/A")
+    .setMustBeFresh(false)
+    .setChildSelector(1);
+  BOOST_CHECK_EQUAL(find(), 4);
+
+  advanceClocks(time::milliseconds(2000));
+  // @4s, all Data are stale
+  startInterest("ndn:/A")
+    .setMustBeFresh(true)
+    .setChildSelector(0);
+  BOOST_CHECK_EQUAL(find(), 0);
+  startInterest("ndn:/A")
+    .setMustBeFresh(true)
+    .setChildSelector(1);
+  BOOST_CHECK_EQUAL(find(), 0);
+}
+
+BOOST_AUTO_TEST_SUITE_END() // Find
+BOOST_AUTO_TEST_SUITE_END() // Common
+BOOST_AUTO_TEST_SUITE_END() // TestInMemoryStorage
+BOOST_AUTO_TEST_SUITE_END() // Util
+
+} // namespace tests
+} // namespace util
+} // namespace ndn